Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Coupeville, Whidbey Island, WA.
Next low tide : in 2h 13m at 6:42 pm (7.0 ft)
Next high tide (tomorrow) : 12:40 am (11.5 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - Mar 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:1110.710:549.23:025.74:011.36:505:55Third Quarter1Sat
2Sun9:5910.44:046.65:000.96:485:56Third Quarter2Sun
3Mon12:239.410:59 AM10.15:267.26:040.56:475:58Third Quarter3Mon
4Tue1:479.912:0810.16:547.27:060.06:455:59Waning Crescent4Tue
5Wed2:4510.61:1710.48:056.68:05-0.56:436:01Waning Crescent5Wed
6Thu3:2811.22:2010.89:005.78:58-0.86:416:02Waning Crescent6Thu
7Fri4:0611.83:1911.29:474.79:48-0.96:396:04New Moon7Fri
8Sat4:4112.24:1611.410:323.510:35-0.56:376:05New Moon8Sat
9Sun5:1612.55:1111.511:162.411:220.26:356:07New Moon9Sun
10Mon5:5312.66:0711.412:001.56:336:08Waxing Crescent10Mon
11Tue6:3012.57:0511.212:081.212:460.86:316:10Waxing Crescent11Tue
12Wed7:0912.28:0410.812:552.41:330.46:286:11Waxing Crescent12Wed
13Thu7:5011.79:0810.31:453.72:230.36:266:13Waxing Crescent13Thu
14Fri8:3511.010:2310.02:405.03:160.56:246:14First Quarter14Fri
15Sat9:2610.311:539.93:486.04:140.96:226:16First Quarter15Sat
16Sun10:279.55:186.65:181.26:206:17First Quarter16Sun
17Mon1:2110.111:41 AM9.07:006.66:251.56:186:19First Quarter17Mon
18Tue2:2610.412:578.98:146.07:271.56:166:20Waxing Gibbous18Tue
19Wed3:1210.72:029.09:035.48:211.56:146:22Waxing Gibbous19Wed
20Thu3:4510.82:559.39:394.89:051.56:126:23Waxing Gibbous20Thu
21Fri4:1010.93:409.610:074.29:441.76:106:25Waxing Gibbous21Fri
22Sat4:3111.04:199.910:323.610:191.96:086:26Full Moon22Sat
23Sun4:5111.04:5710.110:563.010:532.36:066:28Full Moon23Sun
24Mon5:1411.15:3410.311:222.311:272.86:046:29Full Moon24Mon
25Tue5:3911.16:1310.411:521.66:026:31Full Moon25Tue
26Wed6:0711.16:5410.512:023.312:261.06:006:32Waning Gibbous26Wed
27Thu6:3811.07:3910.512:394.01:030.65:586:33Waning Gibbous27Thu
28Fri7:1010.78:2910.41:184.71:440.35:566:35Waning Gibbous28Fri
29Sat7:4710.49:2510.22:035.52:300.25:536:36Waning Gibbous29Sat
30Sun8:3010.010:3210.12:576.23:230.25:516:38Third Quarter30Sun
31Mon9:259.611:4810.24:056.74:220.45:496:39Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

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What time does the tide turn (slack tide) in Coupeville, Whidbey Island, WA today?

Slack tide in Coupeville, Whidbey Island, WA is approximately 9:41 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a transitional phase. Tonight's moon is 28% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Coupeville, Whidbey Island, WA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Coupeville, Whidbey Island, WA?

Tide predictions for Coupeville, Whidbey Island, WA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Coupeville, Whidbey Island, WA?

Tide data for Coupeville, Whidbey Island, WA is sourced from NOAA Station #9447929. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9447929.

What is the moon phase in Coupeville, Whidbey Island, WA tonight?

Tonight the moon over Coupeville, Whidbey Island, WA is Waning Crescent (28% illuminated). This places Coupeville, Whidbey Island, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA